- CEO
- Toshio Matsuo
- Full Time Employees
- 5,115
- Sector
- Industrials
- Industry
- Industrial - Machinery
- Address
- Gate City Ohsaki-West Tower Tokyo Japan 141-0032
- IPO Date
- Oct 15, 2010
- Business
- The Japan Steel Works, Ltd. (JSW) manufactures and sells heavy steel forgings, industrial machinery, and engineering products for energy, infrastructure, and advanced manufacturing applications worldwide. Founded in 1907 and headquartered in Tokyo, Japan, the company operates through two primary segments: Industrial Machinery Products, which offers plastics processing equipment including extruders, pelletizers, biaxially oriented film production lines, twin-screw compounding extruders, injection molding machines, blow molding machines, magnesium alloy molding machines, semiconductor and display manufacturing systems such as excimer laser annealing equipment, laminators, vacuum laminators, and defense-related products including ordnance and railway couplers; and Material and Engineering Products, which provides steel castings and forgings such as reactor pressure vessel components, turbine casings, rotor shafts, die steel, steel rolls, clad steel plates, pressure vessels, and engineering services encompassing design, welding, non-destructive testing, inspection, and hydrogen-related infrastructure solutions, alongside new business initiatives in photonics, composite materials, and metallic components for semiconductors, mobility, and electronics.
JSW serves diverse markets including power generation, petrochemicals, renewable energy, semiconductors, automotive electrification via lithium-ion battery separators, electronic devices, and defense, with global operations centered in Japan and extending internationally through manufacturing and service networks.
Recent developments include a 2023 licensing agreement with Patria Group to manufacture AMV XP 8x8 armored vehicles in Japan, with production preparations ongoing into 2025; an absorption-type merger of a consolidated subsidiary announced in April 2025 to streamline operations; and the issuance of restricted stock compensation completed in July 2025 to align management incentives with shareholder value.